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Contract types in civil engineering; govt works

Short answer

Civil engineering contracts include lump sum, item rate, percentage rate, cost plus, labour, turnkey/EPC, BOT, and management contracts. Government works in Nepal commonly use the item rate (unit price) contract because payment is for measured quantities, bids are comparable, variations are easy, and it is transparent for public audit.

Write the names of different types of contracts used in Civil Engineering. Which type of contract is used for Government works? Why?

Types of contract in civil engineering

  1. Lump sum (fixed price) contract
  2. Item rate (unit price, BOQ) contract
  3. Percentage rate contract
  4. Cost plus (reimbursable) contract: with percentage fee, fixed fee, or incentive fee
  5. Labour contract
  6. Turnkey / EPC / design-build contract
  7. BOT / BOOT / BOO / BTO contracts
  8. Construction management / management contract
  9. Joint venture and sub-contract
  10. Package, time-and-material, and force account (departmental) works

Type used for government works

The item rate (unit price) contract is the commonly used type for government works in Nepal, and the lump sum contract is used for small, well-defined works. Larger and special works use EPC or design-build contracts.

Why

  • The contractors quote rates for each item in the BOQ and payment is made for the measured quantity actually done; so the client pays only for what is built, and the final cost follows the real quantity.
  • The design is completed before tender, and the quantities are estimated by the client's engineers, so the bids are comparable.
  • It is transparent for public audit and gives fair competition under the Public Procurement Act, 2063.
  • Variations are easily valued at the BOQ rates.
  • Risk of quantity error remains with the client, but the price risk is on the contractor.

✓ Answer checked by Claude Opus 5.5 (high effort)

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